answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
storchak [24]
2 years ago
14

1. The C major key, starting with the middle C, consists of seven notes (white keys on the piano) with the following frequencies

.
Note; C D E F G A B
Frequency;(Hz) 261.6 / 293.7 / 329.6 / 349.2 / 392.0 / 440.0 / 493.9
Determine the ratio of the note A to middle C.
a. 1.6818
b. 1.4983
c. 1.5348
d. 1.3654
2.The C major key, starting with the middle C , consists of seven notes (white keys on the piano) with the following frequencies.
Note: C D E F G A B
Frequency(Hz): 261.6 / 293.7 / 329.6 / 349.2 / 392.0 / 440.0 / 493.9
Determine the ratio of the note D to middle C.
a. 1.1227
b. 1.4566
c. 1.234
d. 1.3454
3. When an octave is divided into twelve equal steps, a chromatic scale results. The ratios between sucessive notes is constant.
c- 261.6 c#-277.2 d- 293.6 d#- ? e-329.6 f- 249.2 f#-370.0 g-392.0 g#- ? a-440 a#-466.1 b- 493.8 c-523.2
Determine the missing frequency for D# using the ratio 1.0595. Round to the nearest tenth.
a. 311.0
b. 415.3
c. 311.1
d. 625.2
4. A chord consists of notes that sound good together. The C major chord, starting at middle C, has the following frequencies:
C - 262 Hz
E - 330 Hz
G - 392 Hz
Determine the ratio of the frequency of G to C. Express the answer in a simple integer ratio. (Due to rounding the ratio will be approximate.)
a. 5 to 4
b. 3 to 2
c. 6 to 5
d. 9 to 8
5. A chord consists of notes that sound good together. The C major chord, starting at middle C, has the following frequencies:
C - 262 Hz
E - 330 Hz
G - 392 Hz
Determine the ratio of the frequency of E to C. Express the answer in a simple integer ratio. (Due to rounding the ratio will be approximate.)
a. 5 to 4
b. 3 to 2
c. 6 to 5
d. 9 to 8
6.Which component in a musical note is referred to as the pitch of a sound?
a. wavelength
b. frequency
c. time
d. distance
PLEASE HELP!!
Mathematics
2 answers:
Lorico [155]2 years ago
8 0
1.) <span>the ratio of the note A to middle C = 440.0 / 261.6 = 1.6820 ≈ 1.6818

2.) </span><span>the ratio of the note D to middle C = 293.7 / 261.6 = 1.1227

3.) </span><span>D# = 293.6 x 1.0595 = 311.1

4.) </span><span>the ratio of the frequency of G to C is 1 : 262/392 = 1 : 0.6683 ≈ 3 : 2

5.) </span><span>the ratio of the frequency of E to C = 1 : 262/330 = 1 : 0.7939 ≈ 5 : 4

6.) The </span><span>component in a musical note is referred to as the pitch of a sound is the frequency.</span>
Mariulka [41]2 years ago
7 0

Answer:

I am not going to steal your thunder by putting up the same answers, but all of them are correct.  Thanks for the help. :)

Step-by-step explanation:

You might be interested in
Identify two tables which represent quadratic relationships
lord [1]

Answer:

Tables 3 and 5

Step-by-step explanation:

if you know that quadratic equations from curves, then, check out the number patterns on 3 and 5, then, compare them with the others, you'll see

3 0
2 years ago
Read 2 more answers
You begin your first day as a police officer earning $30,000/yr. Assuming that you obtain a full 5% increase each year, what wil
spayn [35]

Answer:

The equation for the amount of salary after x number of years is given by:

y = a(1+r)^x

where

a is the initial amount

x represents the number of years and

r represents the growth rate( in decimal)

As per the statement:

You begin your first day as a police officer earning $30,000/yr

⇒ a= 30,000

It is also given that you obtain a full 5% increase each year,

⇒r = 5\% = 0.05

then;

y = 30,000(1+0.05)^x    

y = 30,000(1.05)^x       ....[1]

we have to find the salary in three years.

⇒x = 3

Substitute this value in [1] we have

y = 30,000(1.05)^3

Simplify:

y = \$ 34,4728.75

therefore, your salary be in three years will be $34,4728.75

3 0
2 years ago
Read 2 more answers
What is the Value of the underlined digit 646,950
Jobisdone [24]
I'm sorry, but what digit is underlined?
4 0
2 years ago
Read 2 more answers
Find m2ABC<br> (3x + 8)<br><br> (5x - 40)
Virty [35]

Answer:

Step-by-step explanation:

(3x + 8) =(5x - 40)

Remove the brackets and replace 3x with -40 and -40 with 3x.

40 + 8 =5x - 3x  (Remember that when you replace, the signs change from negative to positive and vise versa)

Solve for x. x= -24

Replace x with its value.

3(-24)+ 8= -64

5(-24) - 40= -160

7 0
2 years ago
Shanti wrote the predicted values for a data set using the line of best fit y = 2.55x – 3.15. She computed two of the residual v
svet-max [94.6K]
<span>Residual value is the difference between the observed value of the dependent variable (y) and the predicted value (ŷ) in a data set.

i.e. Residual value = given value - predicted value

From the table, the residual value corresponding to a has 4.1 as the given value and 4.5 as the predicted value.
Therefore, a = 4.1 - 4.5 = -0.4

Similarly, </span><span>the residual value corresponding to b has 7.2 as the given value and 7.05 as the predicted value.
Therefore, b = 7.2 - 7.05 = 0.15
</span>
Therefore, a = -0.4 and b = 0.15
4 0
2 years ago
Read 2 more answers
Other questions:
  • Anna’s bank gives her a loan with a stated interest rate of 10.22%. How much greater will Anna’s effective interest rate be if t
    8·1 answer
  • Denise bought 116 ounces of beans for a bean dip. She bought both 15-ounce cans and 28-ounce cans, and the total number of cans
    9·2 answers
  • Roger is building a storage shed with wood blocks that are in the shape of cubic prisms. Can he build a shed that is twice as hi
    6·2 answers
  • The temperature of chicken soup is 192.7°F. As it cools, the temperature of the soup decreases 2.3°F per minute. Part A What is
    10·1 answer
  • Maple street is 3 times as long as pine street. how long is pine street?
    9·2 answers
  • A hollow cylindrical iron pipe with external and internal radii 8cm and 6cm respectively and length 35cm is melted and recast in
    13·1 answer
  • A linear function that represents the number of hot dogs purchased at a football game is compared to a different linear function
    12·1 answer
  • Mary earns $28,000 a year plus commission. One week she grossed $655.58. She had sold $1673.19 worth of merchandise. What is the
    14·1 answer
  • Tootsie rolls cost $0.02 each and Peppermint Patties cost $0.05 each. If you have $1.00, how many of each
    15·2 answers
  • Rui is a professional deep water free diver. His altitude (in meters relative to sea level), xxx seconds after diving, is modele
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!